Mick Jagger, frontline Rolling Stones, will have a heart valve replacement operation this week in New York, reported Reuters.
The agency refers to the Drudge Report site, which in turn identifies anonymous sources. Representatives of Rolling Stones in the US refused to comment, a London spokesman said.
This weekend, it was reported that the legendary British rockers had delayed their journey in the US and Canada to allow Mick Jagger to undergo treatment. It was due to run between 20 April and 29 June.
"I'm disappointed to postpone the journey, but I'll do my best to get back to the scene as soon as possible," Jagger told Twitter.
According to the Drudge Report website, the 75-year-old Rolling Stones forwarder is expected to improve and return to the stage in the summer.